Echeveria islasiae a new species from series Longistylae (Crassulaceae)
Por:
Reyes Santiago, Jeronimo, Emilio De la Cruz-Lopez, Luis
Publicada:
1 dic 2021
Ahead of Print:
1 ago 2021
Resumen:
Echeveria islasiae is proposed as new species, a plant collected near
the town of Olinala in the state of Guerrero, Mexico. Its morphological
characteristics such as few-flowered cincinnate inflorescences and an
elongate corolla with greenish apex relate it with the taxa of ser.
Longistylae. Conversely, it differs from the other taxa of the series by
having narrower, dark green, oblanceolate-spatulate to cymbiform leaves
that are somewhat triquetrous at the apex, deep red floral peduncles and
pedicels, the corolla pink colored at the middle, and the absence of
appendages at the sides of the epipetalous filaments. A first effort to
build a reference library for DNA barcoding shows two diagnostic
nucleotides which differentiate the new species from related taxa, one
in the matK chloroplast region and one in the ITS2 nuclear region.
Filiaciones:
Reyes Santiago, Jeronimo:
Univ Nacl Autonoma Mexico, Jardin Bot, Inst Biol, Circuito Exterior S-N,Ciudad Univ, Mexico City 04510, DF, Mexico
Emilio De la Cruz-Lopez, Luis:
Univ Nacl Autonoma Mexico, Ciencias Biol, Av Ciudad Univ 3000, Mexico City 04360, DF, Mexico
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